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利用XStream在Java对象和XML之间相互转换  

2012-09-11 23:14:22|  分类: JAVA |  标签: |举报 |字号 订阅

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利用XStream在Java对象和XML之间相互转换
 
XStream是个好东西,可以方便在Java对象和XML之间相互转换,效率和可读性都非常高,下面是我写的一个测试的例子,放出来一块看看。
 
需要的jar包如下:
xpp3_min-1.1.4c.jar
xstream-1.3.jar
 
目标:将Persons对象转换xml,再将xml转化为Persons对象。
 
实现源码列表:
 
package com.lavasoft.demo3;

import com.thoughtworks.xstream.XStream;

import java.util.List;
import java.util.ArrayList;
import java.util.Iterator;
import java.io.StringReader;
import java.io.FileReader;
import java.io.File;
import java.io.FileNotFoundException;

import org.dom4j.io.SAXReader;
import org.dom4j.Document;
import org.dom4j.Node;
import org.dom4j.DocumentException;

/**
* Created by IntelliJ IDEA.
* File: demo3.java
* User: leizhimin
* Date: 2008-3-4 14:44:03
*/

public class XStreamDemo {
    public static void main(String args[]) {
        testBean2XML();
    }

    /**
     * 生成一个Persons对象
     *
     * @return Persons对象
     */

    public static Persons getPersons() {
        Address add1 = new Address("type1", "郑州市经三路财富广场1");
        Address add2 = new Address("type2", "郑州市经三路财富广场2");
        List<Address> addlist1 = new ArrayList<Address>();
        addlist1.add(add1);
        addlist1.add(add2);

        Address add3 = new Address("type3", "郑州市经三路财富广场3");
        Address add4 = new Address("type4", "郑州市经三路财富广场4");
        List<Address> addlist2 = new ArrayList<Address>();
        addlist2.add(add3);
        addlist2.add(add4);

        Addresses addes1 = new Addresses(addlist1);
        Addresses addes2 = new Addresses(addlist2);
        Person person1 = new Person(addes1, "6666554", "lavasoft", "man");
        Person person2 = new Person(addes2, "7777754", "yutian", "man");

        List<Person> listPerson = new ArrayList<Person>();
        listPerson.add(person1);
        listPerson.add(person2);
        Persons persons = new Persons(listPerson, "001");
        return persons;
    }

    /**
     * 利用XStream在Java对象和XML之间相互转换
     */

    public static void testBean2XML() {
        System.out.println("将Java对象转换为xml!\n");
        Persons persons = getPersons();
        XStream xstream = new XStream();
        xstream.alias("address", Address.class);
        xstream.alias("addresses", Addresses.class);
        xstream.alias("person", Person.class);
        xstream.alias("persons", Persons.class);
        String xml = xstream.toXML(persons);
        System.out.println(xml);

        System.out.println("\n将xml转换为Java对象!");
        Persons cre_person = (Persons) xstream.fromXML(xml);
        System.out.println(cre_person.toString());
    }
}
 
public class Persons {
    private String type;
    private List<Person> listPerson;

    public Persons(List<Person> listPerson, String type) {
        this.listPerson = listPerson;
        this.type = type;
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public List<Person> getListPerson() {
        return listPerson;
    }

    public void setListPerson(List<Person> listPerson) {
        this.listPerson = listPerson;
    }

    public String toString() {
        StringBuffer sb=new StringBuffer();
        for(Iterator it=listPerson.iterator();it.hasNext();){
            Person p=(Person)it.next();
            sb.append(it.toString());
        }
        return "Persons{" +
                "type='" + type + '\'' +
                ", listPerson=" + sb.toString() +
                "}\n";
    }
}
 
public class Person {
    private String name;
    private String sex;
    private String tel;
    private Addresses addes;

    public Person(Addresses addes, String name, String sex, String tel) {
        this.addes = addes;
        this.name = name;
        this.sex = sex;
        this.tel = tel;
    }

    public Addresses getAddes() {
        return addes;
    }

    public void setAddes(Addresses addes) {
        this.addes = addes;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }

    public String getTel() {
        return tel;
    }

    public void setTel(String tel) {
        this.tel = tel;
    }

    public String toString() {
        return "Person{" +
                "addes=" + addes.toString() +
                ", name='" + name + '\'' +
                ", sex='" + sex + '\'' +
                ", tel='" + tel + '\'' +
                "}\n";
    }
}
 
public class Addresses {
    private List<Address> listAdd;

    public Addresses(List<Address> listAdd) {
        this.listAdd = listAdd;
    }

    public List<Address> getListAdd() {
        return listAdd;
    }

    public void setListAdd(List<Address> listAdd) {
        this.listAdd = listAdd;
    }

    public String toString() {
        StringBuffer sb=new StringBuffer();
        for(Iterator it=listAdd.iterator();it.hasNext();){
            Address add=(Address)it.next();
            sb.append(add.toString());
        }
        return "Addresses{" +
                "listAdd=" + sb.toString() +
                "}\n";
    }
}
 
public class Address {
    private String addType;
    private String place;

    public Address(String addType, String place) {
        this.addType = addType;
        this.place = place;
    }

    public String getAddType() {
        return addType;
    }

    public void setAddType(String addType) {
        this.addType = addType;
    }

    public String getPlace() {
        return place;
    }

    public void setPlace(String place) {
        this.place = place;
    }


    public String toString() {
        return "Address{" +
                "addType='" + addType + '\'' +
                ", place='" + place + '\'' +
                "}\n";
    }
}
 
运行测试类XStreamDemo,打印出结果:
 
将Java对象转换为xml!

<persons>
  <type>001</type>
  <listPerson>
    <person>
      <name>6666554</name>
      <sex>lavasoft</sex>
      <tel>man</tel>
      <addes>
        <listAdd>
          <address>
            <addType>type1</addType>
            <place>郑州市经三路财富广场1</place>
          </address>
          <address>
            <addType>type2</addType>
            <place>郑州市经三路财富广场2</place>
          </address>
        </listAdd>
      </addes>
    </person>
    <person>
      <name>7777754</name>
      <sex>yutian</sex>
      <tel>man</tel>
      <addes>
        <listAdd>
          <address>
            <addType>type3</addType>
            <place>郑州市经三路财富广场3</place>
          </address>
          <address>
            <addType>type4</addType>
            <place>郑州市经三路财富广场4</place>
          </address>
        </listAdd>
      </addes>
    </person>
  </listPerson>
</persons>

将xml转换为Java对象!
Persons{type='001', listPerson=java.util.AbstractList$Itr@1cde100java.util.AbstractList$Itr@1cde100}


Process finished with exit code 0
 
呵呵,XStream不错吧!
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